When a production machine stops, the first half hour decides whether you lose a shift or a week. Here’s the order we follow in our own shops.
1. Make it safe
Hit feed hold or emergency stop if the machine is still moving. If there was a crash, keep hands out of the work zone until the spindle has fully stopped and the axes are locked. Don’t reset alarms yet.
2. Write down the alarm, exactly
Take a photo of the screen. Get the full alarm number and text, plus any second or third alarm behind it. On Fanuc, Haas and Mazatrol controls, the alarm history page often shows what happened first, which is usually the real cause. A photo of the alarm history is worth more than anything else you can give a tech.
3. Note what the machine was doing
- Which program and line was running?
- Was it cutting, tool changing, homing or warming up?
- Any noise, smell, smoke or leaks before it stopped?
- Has this happened before? When?
If there’s an unusual noise and it’s safe to run the spindle, record a 20-second video. Techs can learn a lot from sound.
4. Check the simple stuff
A surprising number of “machine down” calls are fixed with basics:
- Air pressure at the regulator (low air causes tool changer and clamp alarms)
- Lube and hydraulic oil levels
- Coolant level and chip buildup around sensors and the tool changer
- Door interlocks and switches
- Breakers and the main disconnect
Don’t open electrical cabinets unless you’re qualified. Most control alarms are not fixed by power cycling, and repeated resets can make some problems worse.
5. Gather the machine info
Have the make, model, serial number and control type ready before you call. The serial number plate is usually on the side of the machine or inside the electrical cabinet door.
6. Call a repair company that fixes your brand
Use our city pages to find techs who cover your area and work on your brand. Tell them it’s a production machine that’s down. Ask about their response time, hourly rate and any trip charge before they roll.